<template>
  <div>
    <h1>{{id ? '编辑':'新增'}}分类</h1>
    <el-form label-width="120px" @submit.native.prevent="save">
      <el-form-item label="上级分类">
        <el-select v-model="model.parent">
          <el-option v-for="item in parents" :key="item._id" :label="item.name" :value="item._id"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="名称">
        <el-input v-model="model.name"></el-input>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" native-type="submit">保存</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
  export default {
    props: {
      id:{}
    },
    data() {
      return {
        model:{},
        parents:[]
      }
    },
    methods: {
      async save() {
        let res 
        if (this.id) {
          res = await this.$http.put(`rest/categories/${this.id}`,this.model)
        } else {
          res = await this.$http.post('rest/categories',this.model)
        }
        console.log(res);
        this.$router.push('/categories/list')
        this.$message({
          type:'success',
          message:'保存成功'
        })
      },
      async fetch() {
        const res = await this.$http.get(`rest/categories/${this.id}`)
        console.log(res);
        this.model = res.data
      },
      async fetchParent() {
        const res = await this.$http.get(`rest/categories`)
        console.log(res);
        this.parents = res.data
      }
    },
    created() {
      this.fetchParent()
      this.id && this.fetch()
    },
  }
</script>

<style lang="scss" scoped>

</style>